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Diamond Point International

MEN Mikro G301 - 3U CompactPCI® Serial Unmanaged 4-Port Rugged Industrial Ethernet Switch

Four Port Gigabit Switch, -40 to +85°C Screened

MEN Mikro G301 - 3U cPCI Serial 4 Port Ethernet Switch
Key Features
3U 4HP CompactPCI® Serial Ethernet Switch
Unmanaged 4-port Gigabit Ethernet switch
4 Gigabit Ethernet (front) on RJ45 (M12 option)
Power over Ethernet (PoE) PSE (all ports)
1 Gigabit Ethernet on rear I/O (option)
EN 50155 class Tx (railways)
PICMG CPCI-S.0 CompactPCI® Serial peripheral
-40 to +85°C with screened components


MEN Mikro's G301 is an unmanaged 3U Ethernet switch implemented as a CompactPCI® Serial board. It occupies one peripheral slot, using a 4 HP front panel sporting 4 Gigabit Ethernet ports on RJ45 connectors. Options include M12 front connectors and a P6 connector for the rear I/O Ethernet signals from the board's fifth Gigabit Ethernet port.

The G301 supports full-duplex and half-duplex operation with auto-negotiation, high-speed non-blocking store-and-forward switching, Quality of Service (QoS) support with four traffic classes IEEE 802.1p and three-level 802.1x security. The switch is fault tolerant and restores itself on its own: If a link is temporarily unavailable, frames can be sent via backup/redundant links (spanning tree protocol / link aggregation) and no data loss occurs. Its built-in test mechanisms make the G301 an even more reliable component in the communication system.

In addition, the switch can act as Power over Ethernet (PoE) Power Sourcing Equipment (PSE), supplying other devices on all ports with power.

By using an application-specific configuration EEPROM, the G301 can act similarly to a managed switch with fixed settings. This enables features untypical for unmanaged models like 802.1p priority and port based priority, port-based VLAN or IEEE 802.1q VLAN IDs.

The board is specifically designed for rugged mobile communication systems. It is thus for example fully compliant with the EN 50155 railway standard, screened for a -40 to +85°C operation temperature and ready for coating.


Main Specification

FunctionKey Features
• High-speed non-blocking, store-and-forward switching
• Up to four 10/100/1000Base-T ports at front panel (Electrical isolation: 1500 Vrms)
• One 10/100/1000Base-T port at rear connector (optional)
• Port configuration: copper, 10/100 and 1000 Mbit/s
• Auto-negotiation / Auto MDI/MDIX crossover on all ports
• Layer2-based Policy Control List
• 8K MAC address lookup table with automatic learning and aging

Supported Protocols and Standards
• Ethernet flow control (IEEE 802.3x)
• Link aggregation LACP / EtherChannel (IEEE 802.3ad, 2005)
• Priority-based switching, Quality of Service/DiffServ, tagged frames, Layer2-based 801.1Q VLAN-ID packet routing (IEEE 802.1p)
• Port-based authentication on registered MAC Address Lists
• Power over Ethernet support (IEEE 802.3af / IEEE 802.3at, Type 1)
• VLAN/port-based VLANs GVRP/MVRP (IEEE 802.1Q Rev D5.0, 2005)

Power Over Ethernet Features
• Power over Ethernet functions on all ports
• PSE (Power Sourcing Equipment) function
• Supports supply classes 0 to 3
• Supplies up to four PD devices (up to 28 W total)
Connection(s)Front I/O
• Four Ethernet ports on RJ45 or M12 connectors
• Four link and activity Ethernet status LEDs (two per channel)

Rear I/O
• One Ethernet link via PCIe®


ExpansionCompliance with CompactPCI® Serial PICMG CPCI-S.0 Specification
Peripheral slot
Host interface: one PCI Express® x1 link
• PCIe® 1.x support
• Data rate up to 250 MB/s in each direction (2.5 Gbit/s per lane)
ElectricalSupply voltage/power consumption
• +12 V (-3%/+5%), 2.4 W approx. (without PoE), 28 W PoE max.
MechanicalDimensions: conforming to CompactPCI® Serial specification for 3U boards
Front panel: 4HP with ejector
Conformal CoatingConformal coating on request
TemperatureTemperature range (operation):
• -40..+85°C (screened)
• Airflow: 1.0 m/s
Temperature range (storage): -40..+85°C
Climatic tests according to EN 68068
HumidityRelative humidity range (operation): max. 95% non-condensing
Relative humidity range (storage): max. 95% non-condensing
Weight162 g (with RJ45 connectors)/188 g (with M12 connectors)
VibrationShock and vibration tested according to EN 61373
ShockShock and vibration tested according to EN 61373
MTBF211,019 h @ 40°C according to IEC/TR 62380 (RDF 2000)
• PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMCEN 55022 (radio disturbance)
EN61000-4-2 (ESD Immunity)
IEC 61000-4-4 (burst)
Warranty2 Years

Ordering Details

4-port unmanaged Gigabit Ethernet Switch with PoE, RJ45, -40..+70(+85)°C with screened components

4-port unmanaged Gigabit Ethernet Switch with PoE, M12, -40..+70(+85)°C with screened components, conformal coating